Trait IterableByKeyMap 

pub trait IterableByKeyMap<Item> {
    type Key;
    type DrainIter: Iterator<Item = Item>;
    type Iter: Iterator<Item = Item>;

    // Required methods
    fn drain_key(key: Self::Key) -> Self::DrainIter;
    fn iter_key(key: Self::Key) -> Self::Iter;
}

Represents iterable logic for double key maps (Key1 -> Key2 -> Value).

Returns the iterators over specified (associated) type of the first key’s items.

Required Associated Types

type Key

Map’s first key type.

type DrainIter: Iterator<Item = Item>

Removal iterator type.

type Iter: Iterator<Item = Item>

Getting iterator type.

Required Methods

fn drain_key(key: Self::Key) -> Self::DrainIter

Creates the removal iterator over double map Items.

fn iter_key(key: Self::Key) -> Self::Iter

Creates the getting iterator over double map Items.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T, Value, BlockNumber, Error, OutputError, Callbacks, KeyGen> IterableByKeyMap<<T as DoubleMapStorage>::Value> for MailboxImpl<T, Value, BlockNumber, Error, OutputError, Callbacks, KeyGen>

where T: DoubleMapStorage<Value = (Value, Interval<BlockNumber>)> + IterableByKeyMap<T::Value, Key = T::Key1>, Error: MailboxError, OutputError: From<Error>, Callbacks: MailboxCallbacks<OutputError, Value = Value, BlockNumber = BlockNumber>, KeyGen: KeyFor<Key = (T::Key1, T::Key2), Value = Value>,

type Key = <T as DoubleMapStorage>::Key1

type DrainIter = <T as IterableByKeyMap<<T as DoubleMapStorage>::Value>>::DrainIter

type Iter = <T as IterableByKeyMap<<T as DoubleMapStorage>::Value>>::Iter

impl<T, Value, BlockNumber, Error, OutputError, Callbacks, KeyGen> IterableByKeyMap<<T as DoubleMapStorage>::Value> for WaitlistImpl<T, Value, BlockNumber, Error, OutputError, Callbacks, KeyGen>

where T: DoubleMapStorage<Value = (Value, Interval<BlockNumber>)> + IterableByKeyMap<T::Value, Key = T::Key1>, Error: WaitlistError, OutputError: From<Error>, Callbacks: WaitlistCallbacks<Value = Value, BlockNumber = BlockNumber>, KeyGen: KeyFor<Key = (T::Key1, T::Key2), Value = Value>,

type Key = <T as DoubleMapStorage>::Key1

type DrainIter = <T as IterableByKeyMap<<T as DoubleMapStorage>::Value>>::DrainIter

type Iter = <T as IterableByKeyMap<<T as DoubleMapStorage>::Value>>::Iter

impl<T: AuxiliaryDoubleStorageWrap> IterableByKeyMap<<T as AuxiliaryDoubleStorageWrap>::Value> for T

Available on crate feature std only.

type Key = <T as AuxiliaryDoubleStorageWrap>::Key1

type DrainIter = IteratorWrap<IntoIter<<T as AuxiliaryDoubleStorageWrap>::Key2, <T as AuxiliaryDoubleStorageWrap>::Value>, <T as AuxiliaryDoubleStorageWrap>::Value, GetSecondPos>

type Iter = IteratorWrap<IntoIter<<T as AuxiliaryDoubleStorageWrap>::Key2, <T as AuxiliaryDoubleStorageWrap>::Value>, <T as AuxiliaryDoubleStorageWrap>::Value, GetSecondPos>